Motor plow



v. DUTKIEWICZ AND 0. ISAMBERT.

MOTOR PLOW.

APPLICATION FILED'JUNE 2; 1919.

Patented Feb. 21, 1922.

' 5 amnion;

IZDuZkian z'cz wmzem mmmm vfALE N'll N DUTKIEWICZ, OF IPAR-IS, AND CONSTANT ISAMBERT, OF ABLIS, FRANCE,

MOTOR BLOW.

T 0 all whom it may concern:

Be it known that we, VALnN'rIx DUTKIE- wioz, a citizen of the French Republic, residing at No. 179 Boulevard Pereire, Paris, France, and CONSTANT ISAMBERT, a citizen otthe French Republic, residing at Ablis, Seine-et-()ise, France, have invented certain new and useful Improvements in Motor Plows, of which the following is aspecification.

This invention relates to motor plows of the type in which the main frame has an endless track adaptedto travel along the bottom of a furrow, and a balanced frame carried by the main frame. and provided with plow shares at either end capable of being raised or lowered with respect to the main frame. V r i The object of the present invention is to provide an improved motor plow. comprismg a series of devices which form a symmetrical whole in order to obtain an alternating motion and; working whilst mainmotor plow viewed from the furrow side.

Fig. 2 is a side elevation of the improved motor plow viewed from the side furthest from the plow.

Fig. 3 is a planof the improved motor plow.

In the example shown, 1 is the .motor located on the frame 2 on the side furthest from the, endless track 3. which may be of any desired type.

On the shaft 4 (Figs. 1 and 2), there are mounted loose two chain pinions 5 one of which may be alternatively fixed to the shaft 4; by means of a catch or of a claw coupling, not shown. This pinion transmits through one of the chains 6 the motion of the motor to that one of the two driving wheels 7 that engages the rear portion of the endless track 3. The other pinion that drives the front driving wheel remains disengaged during that period.

The plowshares 8 and 9 are carried by the balanced frame which is mounted on a cross axle 10 from which it can be readily removed, so as to allow of using the motor vehicle as an ordinary tractor, This Specification of Letters Ifatcnt.

balanced frame is composed of two longitudinals 11 and 11 The longitudinal 11 is made of two parts connected by a central member 11 pivotally mounted on the axle 10. The longitudinal 11 is curved as shown in F1gs. 1 and 2, and rests on a supporting member 11 which is likewise rotatably mounted on the axle 10. The two longitudinals 11 and 11 are connected'to each other. by two cross pieces 11 and 11.

To the ends of the balanced frame there are pivotally connected levers 12, 13 whose lower arms carry wheels 1 1, 15. The upper arms of these levers are connected to each other by a cable 16 which passes over the pulleys 17, 18 carried by arms 19, 20 fixed to the balanced frame. The cable 16 also passes round the pulley 21 located at the centre of the balanced frame.

It is to be understood that when that one, of the levers which is located at the rear is moved by means of its upper handle 22, this movement will be communicated to the same extent but in the opposite direction to the lever which is located at the front end of the frame, and consequently to the wheel that is carried by the lower arm of the last mentioned lever.

The driver when sitting on the rear seat 23, by pushing the lever 13 in the direction of the arrow, will thereby move the wheel towards the middle of the. apparatus and thus raise the front end of the balanced frame together with the corresponding plowsliare. y this means he will reverse the balanced frame in such a manner as to be able to recommence working in the opposite direction. 7

It is to be understood that this manoeuvre instead of being performed by the hand of the driver, may be performed with the help of the motor by means of a device connecting the cable 116 in any well known manner to. the, motor shaft; 4 and having a suitable reversing gear.

At each end of the balanced frame there is fixed a sector 24 into the holes of which there is adapted to enter a pin 25 against which the corresponding lever strikes. This means allows of regulating the extreme depth of level that can exist between the front wheel 14: (furrow wheel) travelling along the bottom of the furrow, and the steering wheel (land wheel) travelling on the surface of the unplowed ground. This l m Wllfifil is hereinafter described.

Patented Feb. 21 1922.

Application filed June 2, 1919. Serial No. 301,272; l

' serves solely as a supporting wheel.

A catch mechanism (not shown) operated by means of a pedal 26 (Fig. 3) allows of locking the balanced frame in the dead position wherein the two plows are lifted to equal distances above the surface of the ground.

- on the opposite side to the endless'track there are located on the frame 2, two supporting wheels 27, 28, of which the front one serves alternatively as the land wheel. Each of these wheels is mounted on an aide 29 on the ends of which rests a fork 30 whose two arms consist of leaf springs and are connected by a plate 31. This plate 31 has an aperture through which passes a screw spindle 32 on which works a nut-like member 33 rotatable in the plate 31 in whichit is confined.

It is to be understood that on turning the hand wheel 34 that is fixed to the member 33, the plate 31 which carries'the suspension fork 3O of the wheels 27, 28, will be caused to move up or down, 35 is a nut located under the plate 31; it serves to maintain the wheels 27, 28 in a given position as to height.

The plate 31 carries also a lever 36 connected to the connecting bar 39. This lever carries at its end a ball-and-socket joint confined in the shock absorber 37 of the connecting bar 39.

It is to be understood that by means of this device, only the forward wheel is acted upon by the steering gear, whereas the rear wheel which is not engaged by the said It is however to be noted that for turning the motor plow round as a whole, since the pivotal point of the tractor'vehicle is located at the center of the endless track, the portion of the frame supported by the rear wheel 28, will move in an arc of a circle. The operation of the steering gear producing this movement of the frame therefore does not act upon the axle of the front wheel but upon the point of articulation of the latter to the frame, thus allowing the rear wheel to follow freely the movement of the vehicle. I

What we claim is 1. In a motor plow the combination with the vehicle framing of a balanced rocking frame carrying the forwardly directed plow gear, 7

shares at one end and rearwardly directed plow shares at its other vend,.constructed to be freely mounted upon and readily removable from the vehicle framing, a lever fulcrumed in each end of said rocking frame,

and a cable connecting the two levers together, a furrow wheel mounted at the lower end of each said lever, whereby the driverby acting'by hand, upon each lever cancause said rocking frame to rock over so asto bring the furrow wheel at the leading end of said rocking frame down into the furrow.

2. in a motor plow, the combination with the vehicle framing, of a balanced rocking frame carrying the forwardly directed plowshares at one end and rearwardly directed plowshares at 1ts other end constructed to be readily removable from the vehicleframing, a lever fulcrumed in each end of said rocking frame and a cable connecting the two levers together, a furrow wheel mounted at the lower end of each said lever, whereby the driver by acting through motor driven mechanism directly upon said cable, can cause said rocking frame to rock over so as to bring the furrow wheel at the leading end of said rockingframe down into a furrow.

3. In amotor plow, the combination with I leading end of said rocking frame down into thc furrow, and pedal-controlled means for locking said rocking frame in its midvertical position, that is, with both furrow wheels off the ground, when the motor plow is travelling on roads oris used asa motorv tractor. v

In testimony whereof we have signed our names to this specification. VALENTIN DUTKIEWICZ. CONSTANT ISAMBERT. 

